Home / 22,642.12-31,244.55-12,569.77

Finding the Fourth Proportional to 22,642.12, 31,244.55 and 12,569.77

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Solution

The fourth proportional to 22,642.12, 31,244.55 and 12,569.77 is: 17,345.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,642.12 : 31,244.55 = 12,569.77 : x
  2. Step 2: Convert to fraction form
    22,642.12/31,244.55 = 12,569.77/x
  3. Step 3: Cross multiply
    22,642.12x = 31,244.55 × 12,569.77
  4. Step 4: Simplify right side
    22,642.12x = 392,736,807.25
  5. Step 5: Solve for x
    x = 392,736,807.25/22,642.12
  6. Step 6: Final answer
    x = 17,345.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.